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United States Patent | 6,195,372 |
Brown | February 27, 2001 |
The average power capability of a solid-state laser is increased by cooling the lasing element to a cryogenic temperature. The laser pump chamber is configured to define a flow path for circulating cryogenic fluid. The cryogenic cooling is achieved for rod, slab, active-mirror or disc amplifier-type lasing elements.
Inventors: | Brown; David C. (R.R. #1, Box 356J, Brackney, PA 18812) |
Appl. No.: | 070531 |
Filed: | April 30, 1998 |
Current U.S. Class: | 372/34; 372/35; 372/36; 372/51; 372/55; 372/59; 372/72; 372/75; 372/89 |
Intern'l Class: | H01S 003/04 |
Field of Search: | 372/34,89,35,72,38,51,55,69,36,75 |
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Brown David C., "Heat, Fluorescence, and Stimulated-Emission Power Densities adn Fractions in Nd:YAG", Mar. 1998, vol. 34, No. 3, pp. 560-572. Fan T.Y., "Heat generator in Nd:YAG and Yb:YAG", Jun. 1993, vol. 29, No. 6, pp. 1457-1458. |